Bottom Line Up Front
The Chevy Powerglide is a two‑speed automatic that still wins drag races because it is simple, strong, and cheap to run.
Why the Chevy Powerglide Transmission Is Still a Drag‑Racing Legend
Image: Why the Chevy Powerglide Transmission Is Still a Drag‑Racing Legend – Performance Comparison and Specifications
Design & Looks
First introduced in 1950, the Powerglide uses a straightforward planetary gear set and a single clutch pack. Its metal‑to‑metal construction feels solid, and the case has a distinctive “cheese‑grater” vent that helps cool the fluid. Because there are only a few moving parts, the transmission can be opened and rebuilt in a weekend with basic tools.
Performance & Mileage
Drag racers love the Powerglide for two main reasons. First, the low‑gear ratio (usually 2.45:1) launches the car hard off the line. Second, the high‑gear ratio (around 1.45:1) lets the engine stay in its power band for the entire quarter‑mile. The simplicity also means fewer parasitic losses, so the car can pull more horsepower than many modern three‑speed automatics.
- Quick 0‑60 times in street builds
- Consistent elapsed times (ETs) on drag strips
- Low maintenance cost – often under $200 a year
Price & Rivals
Today a rebuilt Powerglide sells for $1,200‑$1,800, far cheaper than a brand‑new performance transmission. Its main competition is the TH350 and the later 700R4, but those units are heavier and more complex. For a budget racer, the Powerglide gives the best power‑to‑cost ratio.
| Engine | Mileage | Price | Top Features |
|---|---|---|---|
| V8, Small‑Block, 327‑350 ci | Quarter‑mile ET 10‑12 s | $1,200‑$1,800 | Simple design, Strong internals, Easy rebuild |
FAQ
- What makes the Powerglide good for drag racing? Its low‑gear ratio gives a strong launch, and the single‑clutch design loses less power.
- How much does a used Powerglide cost? A rebuilt unit typically ranges from $1,200 to $1,800.
- Can I install a Powerglide in a modern car? Yes, many enthusiasts swap it into classic Chevrolets and even some newer models with adapter kits.
Got a story about your Powerglide build? Share it in the comments below.
Source: Read Official News
